KR200225287Y1 - Electrolytic device for producing oxygen and hydrogen gases - Google Patents

Abstract

The present invention is formed integrally with the partition wall and the frame constituting the electrolytic cell in the electrolysis device. Since the structure of the electrolytic cell is simplified, it is possible to supply an electrolytic gas separation generator capable of reducing the sealing portion and the electrolytic device volume.

In addition, the electrolytic gas collecting path is formed inside the frame to protect the collecting path from external impact, and the electrolytic gas separation generating device requiring a smaller space for installation due to the small volume of the electrolytic device can be supplied.

The present invention is to increase the surface area of the electrode unit by increasing the surface area of the electrode by forming irregularities on the surface of the electrode in order to supply a sufficient amount and quality of industrially available gas in the case of using hydrogen energy. It is possible to provide an electrolytic gas generator in which the gas generation amount per hour is increased.

Description

Electrolyte for hydrogen and oxygen separation generation. {ELECTROLYTIC DEVICE FOR PRODUCING OXYGEN AND HYDROGEN GASES}

The present invention relates to a device for generating oxygen gas and hydrogen gas by electrolyzing water. More specifically, the unit frame of the hydrogen and oxygen gas electrolysis device and a partition wall for collecting oxygen and hydrogen in a separated state are integrated. In addition, the present invention relates to an electrolytic gas separation device which has a simple structure and a smaller connection for sealing, thereby reducing the possibility of leakage of electrolyte and leakage of generated gas such as oxygen and hydrogen.

In recent years, the hydrogen and oxygen gas has been spotlighted as an alternative energy source as well as industrial use, and accordingly, the development of a hydrogen and oxygen gas generator that can generate hydrogen and oxygen gas efficiently has been actively progressed.

FIG. 1 illustrates a conventional hydrogen and oxygen electrolytic gas generating apparatus using an O-type electrode, which is disclosed in Korean Utility Model Publication (Publication No. 1995-13442). In the electrolytic gas generator, an electrolytic cell forms an electrolytic cell, in which two O-type electrodes 1 form an outer wall, and a partition 3 and an insulating ring 18 are positioned between two electrodes to generate oxygen and hydrogen gas, respectively. The threads 21 and 23 are formed.

The electrolytic cells are sequentially stacked to form one electrolytic gas generator. The electrolytic gas separation generator is configured to form an electrode (1) in the form of O to separate the collection of the electrolytic gas and to selectively select the collecting holes (15 or 17) in each of the electrodes (1) according to the nature of the electrode, the electrolyte inlet (11) and the electrolyte discharge port (13).

In this structure, the electrolytic cell is configured, and each of the O-type electrodes 1 having different poles must be provided one by one, and short-circuit due to contact between the electrodes 1 of the two electrodes does not occur. The insulating ring 18 is positioned between two different electrodes to prevent leakage of the electrolyte. In this case, since each electrode 1 has a separate electrolyte inlet 11 and an electrolyte outlet 13 for supplying and discharging the electrolyte, the structure is complicated. In addition, since the pipes for electrolyte supply and drainage outside the electrolyzer and the collecting pipe (route), which are moving passages of the collected gas, are located outside the electrolyzer, the total volume of the electrolyzer gas generator increases and the structure becomes more complicated. .

In addition, since the shape of the electrode is O-shaped for separation and collection of the electrolytic gas, an even electric field is not formed in the entire electrolytic chambers 21 and 23, so that local electrolysis occurs in the electrolytic chamber. In addition, the contact area with the electrolyte is reduced, there is a problem that can not supply the gas continuously and stably due to the small amount of production per unit time. In addition, since one electrolytic cell has multiple connections (two electrolyte outlets, two electrolyte inlets, and two gas collecting holes), a sealing operation is required to prevent leakage of electrolyte or leakage of electrolyte gas. The manufacturing process of the separation generator is complicated and expensive.

2 and 3 show a conventional hydrogen and oxygen electrolytic gas production apparatus and an ultra high purity water production apparatus using the apparatus, which are disclosed in Japanese Patent Laid-Open No. 9-67689. Figure 2 is a schematic diagram showing the overall configuration of a conventional hydrogen and oxygen electrolytic gas separation generator.

3 is an exploded perspective view of an electrolytic cell of a hydrogen and oxygen electrolytic gas generator.

The electrolytic cell 35 is composed of two planar electrodes 1, two unit frames 37, and one partition wall 3, and each of the frames 37 has electrolytic gas collecting holes 15 and 17. Compared with the above-described prior art, it has the following features.

An even electric field is formed in the electrolyte in the electrolytic chambers 21 and 23 by using the plate-shaped electrode 1, and the surface area of the electrode 1 is larger, which increases the production of electrolytic gas per unit volume. The electrolyte through hole 5 is formed in the electrode so that the electrolyte can be easily supplied and the electrolytic device 33 has a relatively simple structure.

However, several components (two flat electrodes, two frames, and one partition wall) are still used to form one electrolytic cell 35, which does not solve the problem of increasing the volume of the electrolyzer and many sealing parts. In addition, the gas collecting pipe (the furnace) (7, 9) is formed outside the electrolytic device 33, the external by the external impact during the installation and transport of the electrolytic device (33) consisting of the electrolytic cell (35) Gas collecting passages 7 and 9 are easily damaged, and as the volume of the electrolyzer 33 increases, a large installation space is required.

In addition, each unit part of the electrolytic cell 35 is compressed by using an adhesive or a packing agent to prevent leakage of electrolyte and leakage of electrolyte gas, so that the reliability of the sealing part is lowered. There is a disadvantage in that it is expensive.

In addition, in the case of the conventional use of hydrogen energy by electrolysis, the amount and quality of the gas that can be industrially used in the quantity could not be sufficiently supplied.

The present invention has been made to solve the above problems, the partition wall and the outer wall forming the electrolytic cell is integrally formed to form a unit frame, reducing the sealing portion according to the connection of the respective unit parts, the electrolyte is leaked or generated electrolytic The purpose of the present invention is to provide an electrolytic device for generating hydrogen and oxygen separation, which can reduce the leakage of gas and generate high quality hydrogen and oxygen.

In addition, the present invention is to maintain the stable state of the collecting furnace from the external impact by forming an electrolytic gas collecting passage inside the frame, because the collecting pipe is not formed outside the electrolytic apparatus, the collecting passage is integrally formed in the electrolytic apparatus It is an object of the present invention to provide an electrolytic device for generating hydrogen and oxygen separation, which requires a smaller space for installing an electrolytic device due to a smaller volume of the device.

In addition, the present invention increases the surface area of the electrode in contact with the electrolyte in order to supply a sufficient amount and quality of industrially available gas in the case of using hydrogen energy, the amount of gas generated per unit time in the unit volume It is an object of the present invention to provide an apparatus for generating hydrogen and oxygen electrolytic gas with increased.

1 is a hydrogen and oxygen electrolytic gas generator according to the conventional O-type electrode

2 is a block diagram of a conventional hydrogen and oxygen electrolytic gas generator.

Figure 3 is a perspective view of the separation of the electrolytic cell of the conventional hydrogen and oxygen electrolytic gas generator.

Figure 4 is a perspective view of the separation of the electrolyte cell of the hydrogen and oxygen electrolytic gas generator according to the first embodiment of the present invention.

5 is a cross-sectional view A-A of an electrolysis cell according to the present invention.

Figure 6 is a cross-sectional view B-B of the electrolytic cell according to the present invention.

7 is a configuration diagram of a hydrogen and oxygen electrolytic gas generator of the present invention.

8 is a hydrogen and oxygen electrolytic gas generator according to a second embodiment of the present invention.

9 is a C-C cross-sectional view of an electrolytic cell according to a second embodiment of the present invention.

<Explanation of symbols for main parts of the drawings>

1, 101: electrode 3, 103: partition wall

5, 105: through hole 106: through hole

7, 107: first collecting furnace 9, 109: second collecting furnace

11, 111: electrolyte inlet 13, 113: electrolyte outlet

15, 115: first collecting hole 17, 117: second collecting hole

18: insulation ring 119: outer wall

21, 121: oxygen electrolysis chamber 123, 23: hydrogen electrolysis chamber

125: O-ring between frames 127: O-ring between electrodes

29, 129: cooling fan 31: filter

33, 133: electrolytic device 35, 135: electrolytic cell

37, 137: unit frame 139: electrode seat

141: O-ring seat between frames 143: O-ring seat between electrodes

145: water supply tank 147: primary separator

149: secondary separator 151: pressure regulator

153: support plate 155: Pre-Filter

157: changeover switch 159: circulation pump

161: solution permeable membrane 163: fixing groove

165: holder 167: bolt

169 nuts

The present invention communicates with the partition partitioning the first chamber and the second chamber and the first chamber and the second chamber, the through-hole formed in the partition and the outer wall formed along the outer circumferential surface of the partition and integrally formed with the partition The present invention relates to an electrolytic device for generating hydrogen and oxygen separation, which is provided between a unit frame and the unit frames, and comprises an electrode which forms an electrolytic chamber together with the first chamber and the second chamber of the unit frame. According to the present invention, the sealing portion is reduced, so that there is little risk of leakage of electrolyte or leakage of gas, and the volume of the electrolytic device is small, thereby reducing the installation space.

In addition, the present invention is the first collecting hole and the second collecting hole formed integrally with the outer wall and the first collecting hole for connecting the first chamber and the first collecting passage and the second collecting hole for connecting the second chamber and the second collecting passage. It is preferable to make. Thus, since the collecting passage is integrally formed in the frame, the volume of the electrolytic apparatus is further reduced, and the collecting passage can be maintained more stable from external impact.

In addition, it is preferable to form irregularities on the surface of the electrode. The unevenness formed on the surface of the electrode serves to increase the surface area of the electrode in contact with the electrolyte. Therefore, the reaction between the electrode and the electrolyte becomes more active, thereby increasing the amount of gas produced per unit time.

Hereinafter, an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

Example 1

4 is an exploded perspective view of an electrolytic cell according to Embodiment 1 of the present invention.

The unit frame 137 includes a partition wall that divides the first chamber and the second chamber, and an outer wall 119 integrally formed at an edge of the partition wall 103. The chamber is a concave space created by the partition wall and the outer wall. The chamber 101 and the electrode 101 installed between the unit frame 137 are combined to generate the electrolytic chambers 121 and 123.

In the present invention, one electrolytic cell 135 includes a first electrolytic chamber 121, which is formed by a unit frame 137 and two electrodes 101 that are seated before and after the frame 137. It is made by the second electrolytic chamber 123. The electrolyte is filled in the electrolyte chambers 121 and 123, and when current flows through the electrodes, the electrolyte in the electrolyte chambers 121 and 123 is electrolyzed to generate oxygen in the oxygen electrolyte chamber 121 at the positive electrode. Hydrogen is generated in the hydrogen electrolysis chamber 123 of the negative electrode.

Inside the outer wall 119, first and second collecting passages 107 and 109 are formed to separate and collect electrolytic gas generated by electrolysis, and the first collecting passage 107 generates oxygen gas. Is communicated to the electrolytic chamber 121 through the first collecting hole 115, the oxygen gas is generated from the electrode 101 which is a (+) electrode. In addition, the second collecting passage 109 communicates with the electrolytic chamber 123 where hydrogen gas is generated through the second collecting hole 117, and the hydrogen gas is generated at the negative electrode.

In this case, the factors affecting the amount and quality of electrolysis generated by each electrode and the electrolysis generated by each electrode are as follows.

Electrolysis is a phenomenon in which electrolyte is decomposed by electric current when two electrodes are immersed in an aqueous electrolyte solution or a melt and passed through a direct current. When electrolysis is carried out, the positive and negative ions move to the electrodes of opposite charges by electric force to lose or gain electrons, causing a reaction.

Pure water does not pass through the electric current, so in order to make the electric current flow, a small amount of electrolyte such as potassium hydroxide, sodium hydroxide, or dilute sulfuric acid should be added to make an electrolyte. DC power should be used as a power source for electrolysis. When using alternating current, the positive and negative poles are not defined and the direction of the current changes periodically, so the gas generated cannot be separated and collected. When electrolysis begins, gas is generated at the positive and negative poles. At this time, the amount of gas generated is proportional to the total amount of electricity passing through the electrolyte by Faraday's law, and when the amount is constant, the amount of precipitated material is proportional to the chemical equivalent. In addition, there is a contact area between the electrolyte and the electrode as a factor influencing the generation of the electrolytic gas. If the contact area increases, more ion exchange occurs in unit time, thereby generating more electrolytic gas.

In the gas generator, AC current is rectified to DC current and enters the electrolyte filled with electrolyte. At this time, electrolysis occurs, and the reaction formula is 2H ₂ O → 2H ₂ + O ₂ .

The O-rings 125 and 127 are for preventing the leakage of electrolyte or electrolytic gas generated by electrolysis. The inter-frame O-rings 125 are used between the frames 137 and the outer wall 119 of the frame 137. An inter-electrode O-ring 127 used to prevent leakage occurs between the first and second collecting paths 107 and 109 formed inside the electrode and the collecting paths 107 and 109 formed in the electrode 101 is used. . At this time, the inter-electrode O-ring 127 is formed only between the unit frame 137 and the electrode 101 in which the electrolytic chambers 121 and 123 communicate with each other by the collecting passages 107 and 109 and the collecting holes 115 and 117. It is preferred to be used.

The partition 103 and the electrode 101 have through holes 105 and 106 through which the electrolyte can flow. A portion in which the first and second collecting passages 107 and 109 are formed in the frame 137 and the electrode 101 becomes an upper portion, and a portion in which the electrolyte through hole 105 is formed is defined as a lower portion. The exchange of electrons is uniformly performed between the electrodes 101, and the through hole 105 is provided in the partition 103 so that the electrolyte is a moving passage, and the electrolyte is filled higher than the through hole 105 so that hydrogen gas and It is desirable to prevent the oxygen gas from mixing. In addition, in order to prevent oxygen and hydrogen from being mixed through the electrolyte through hole 105, a solution permeable membrane 161 is installed in the through hole 105 that passes through the electrolyte but does not pass bubbles generated by electrolysis. It is desirable to. The solution permeable membrane 161 is attached to the partition 103 so as to block both or one side of the electrolyte through hole 105. Asbestos cloth may be used as the solution permeable membrane 161. The partition 103 is provided with a fixing groove 163 for installing the solution permeable membrane 161, and the solution permeable membrane 161 is attached to the fixing groove 163 by press-fitting the holder 165 made of an elastic body. It is desirable to.

5 is a cross-sectional view of an A-A electrolytic cell according to the present invention. Unevenness is formed on the surface of the electrode 101 to maximize the contact area with the electrolyte.

At one end portion of the upper portion of the electrolytic device constituted by the unit frame 137, discharge ports communicating with the first and second collecting passages 107 and 109 are formed, respectively, to process and generate gas generated by electrolysis. Will be saved.

The collection paths 107 and 109 in the outer wall 119 formed on the unit frame 137 have an inter-electrode O-ring 127 between the collection paths 107 and 109 formed in the electrode 101. To prevent leakage of gas. The O-ring 127 is to be seated, the seating portion 143 is preferably provided in the groove shape around the collection path (107, 109) around the collection path (107, 109).

In addition, on the circumferential surfaces of the outer walls 119 facing each other of the frame, an inter-frame O-ring seating portion 145 on which the inter-frame O-ring 125 for preventing leakage of electrolyte is provided.

6 is a cross-sectional view B-B of the electrolytic cell according to the present invention. The drawing illustrates in detail the first and second collecting paths 107 and 109 and the first and second collecting holes 115 and 117 formed in the unit frame 137. The first collecting passage 107 and the second collecting passage 109 pass through the outer wall 119 side by side. At this time, each of the first and second collecting passages 107 and 109 is communicated with each of the electrolytic chambers 121 and 123 by the first and second collecting holes 115 and 117, respectively. The hydrogen electrolytic chamber 123 in which the hydrogen gas is generated and the oxygen electrolytic chamber 121 in which the oxygen gas is generated are alternately stacked to form an electrolytic device.

Figure 7 shows the overall configuration of the electrolytic gas separation generator of the present invention.

The electrolytic device 133 is a unit frame 137, the sealing member 125, the electrode 101 is repeatedly stacked to form an electrolytic device 133, the laminated device formed on both sides of the stacked electrolytic device 133 The support plate 153 for crimping and supporting the unit parts is located. Although not shown in the drawing, the support plate 153 for crimping and supporting the stacked electrolytic cells supports the electrolytic device 133 by crimping with bolts and nuts. In order to assemble the electrolytic device 133 by stacking the unit frames 137, the collection paths 107 and 109 may be aligned to facilitate the assembly by matching the respective first and second collection paths 107 and 109. It is preferable that the guide surface is assembled by inserting a guide member into the guide surface.

In addition, the support plate 153 has a passage for applying electricity to the electrolytic device and a passage through which the electrolyte can enter and exit. When used as an AC rule power source is converted into a DC power source is applied to the electrolytic device 133 via a switch, the switch 157 is a foreign material formed by the reduction film phenomenon on the cathode of the electrolytic device 133 By removing at regular intervals, the current density of the electrolytic device 133 can be made uniform.

Looking at the electrolyte circulated through the electrolyte inlet 111 and the electrolyte outlet 113 provided in the support plate, the electrolyte discharged through the electrolyte outlet 113 to maintain the electrolysis efficiency of the electrolytic device 133 In order to maintain the temperature of the electrolyte to an appropriate level. In the present invention, the pump 159 for circulating the solution in the electrolytic apparatus to avoid the cooling method by the external blowing and to maintain the appropriate temperature (40 ℃-60 ℃) through the radiator 129 in the course of the electrolyte circulating do. In addition, the inlet end of the electrolyte is passed through the PRE-FILTER (155) formed by the heat fusion method to maintain a clean electrolyte solution from which foreign substances have been removed and resupply. The electrolyte supplied in this way is replenished through the electrolyte inlet 111 of the support plate 153. The replenished electrolyte passes through the through hole 105 formed in the partition 103 and is filled in each of the electrolyte chambers 121 and 123 through the through hole 106 of the electrode 101.

The through hole 105 formed in the partition 103 is provided with a solution permeable membrane to pass the electrolyte, but does not pass oxygen or hydrogen bubbles generated during the electrolysis process to provide a better gas.

Each electrolytic gas generated and discharged by electrolysis from the hydrogen and oxygen separation type electrolytic apparatus 133 is buried with a small amount of electrolyte. In order to discharge high quality clean hydrogen and oxygen gas, the collection path of the electrolytic apparatus 133 is discharged. Each gas discharged from 107 and 109 is injected into the feed water tank 145. Hydrogen and oxygen gas injected into the water supply tank 145 are bubbled and washed in water. In addition, in order to generate a large number of bubbles to increase the effect of the bubble, it is preferable that the outlet port through which gas is discharged from the water supply tank 145 into the water has a plurality of holes.

In the next step, the hydrogen and oxygen gas discharged from the water supply tank 145 contains fine water, which reduces the purity of the generated gas. Therefore, hydrogen and oxygen gas must go through a process of removing water while passing through primary and secondary water separators 147 and 149 for removing coexisting water. The drain of the primary separator 147 is a structure that is reduced to the water supply tank and the trace drain of the secondary separator 149 is a structure to discharge to the outside automatically or manually when a certain amount is reached.

As a large amount of hydrogen and oxygen separation type gas generators, a pressure equalizing regulator 151 for maintaining each of the separated gases at a uniform pressure is configured in order to configure the partial gas to be used while maintaining an appropriate mixing ratio as necessary. The pressure regulator 151 is intended to solve the problem caused by the difference in pressure caused by the use of hydrogen gas using a balance valve. The equalization regulator releases oxygen gas into the atmosphere to maintain the equalization pressure.

Example 2

Figure 8 shows a second embodiment according to the present invention.

In the second embodiment, the partition 103 and the frame 137 are integrally formed, but the electrolytic gas collecting passages 107 and 109 are not located inside the outer wall 119 of the unit frame 137. The collecting passages 107 and 109 are formed outside. In addition, a plurality of through-holes 105 are formed in the partition 103 to serve as passages of charge and electrolyte, and the solution permeable membrane 161 uses bolts 167 and nuts 169 to the partition 103. It shows what is installed.

In the hydrogen and oxygen electrolytic gas separation generator 133, the collecting path is located outside the unit frame 137, and protrusions are formed on the outer circumferential surface of the outer wall 119, and the movement of the respective electrolytic gas inside the protrusions is performed. There may be two forms in which collecting passages 107 and 109 serving as passages are formed and separate collecting tubes which are not adjacent to and adjacent to the unit frame 137 are provided.

According to the second embodiment, the collecting path may not be formed on the electrode, and the sealing member between the collecting path formed on the frame and the collecting path provided on the electrode may be reduced, thereby reducing the manufacturing process and reducing productivity and manufacturing cost. . In addition, according to the second embodiment, when the frame and the electrode are stacked to assemble an electrolytic device, the first and second collecting paths are disposed between the first and second collecting paths so as to coincide with the collecting paths formed in the protrusions protruding outside the unit frame. Since the bone is matched using the bone, the collecting path can be matched, so that the assembly operation can be performed more easily. The bone serves as a guide and can be assembled more easily by inserting a guide rod into the guide.

9 is a C-C cross-sectional view of an electrolysis cell according to a second embodiment of the present invention.

The solution permeable membrane 161 may be attached to the partition 103 using a bolt 167 and a nut 169.

The electrolytic gas separation generating device can be used not only for generating oxygen and hydrogen gas by water but also for generating gas using other solutions, and can be variously modified within a range permitted by the technical idea.

The present invention is an apparatus for generating hydrogen and oxygen gas by electrolysis of water, since the partition wall and the unit frame forming the electrolytic cell are integrally formed, the coupling part of the unit parts of the electrolytic cell is reduced and the sealing work between the unit parts is reduced. It is possible to shorten the manufacturing process, there is an effect to solve the problem of the leakage of the gas generated by the electrolyte or electrolysis generated in the sealing portion and the purity of the produced gas due to the mixing of the two gases due to the leakage.

In addition, the electrolytic gas collecting passage is formed inside the unit frame to prevent the leakage of the electrolytic gas by maintaining the collecting passage from the external impact, and the volume of the electrolytic apparatus is reduced, the electrolytic apparatus can be installed in a smaller space It works.

In addition, since the present invention adopts the electrode having the unevenness, the contact area between the electrode and the electrolyte is increased to increase the amount of gas generated per unit time in the unit volume.

In addition, according to the second embodiment of the present invention may not form a collecting path in the electrode and can reduce the sealing member between the collecting path formed in the unit frame and the collecting path provided in the electrode, reducing the manufacturing process and productivity The production cost is reduced.

Further, according to the second embodiment, when the unit frame and the electrode are stacked to assemble an electrolytic device, the first collecting path and the second collecting path are disposed between the first collecting path and the second collecting path so as to coincide with the collecting path formed in the protrusion protruding outside the unit frame. Since the goal of matching the goal of the matching can be matched to the collection path can be more easily performed assembly work. The bone serves as a guide portion and inserting the guide rod into the guide portion can be more easily assembled.

Claims (4)

A partition wall partitioning the first chamber and the second chamber; A through hole communicating with the first chamber and the second chamber and formed in the partition wall; A solution permeable membrane installed on the partition wall to prevent entry of bubbles through the through hole; A unit frame formed along an outer circumferential surface of the partition wall and formed of an outer wall integrally formed with the partition wall; An electrolysis device for generating hydrogen and oxygen separation between the unit frames, the electrode including an electrode forming an electrolytic chamber together with the first chamber and the second chamber of the unit frame. The method of claim 1, further comprising: a first collecting passage and a second collecting passage formed integrally with the outer wall; A first collecting hole connecting the first chamber and the first collecting path; Electrolytic apparatus for generating hydrogen and oxygen separation, characterized in that consisting of a second collecting hole connecting the second chamber and the second collecting passage. The electrolytic device for generating hydrogen and oxygen separation according to claim 1 or 2, wherein the outer wall has grooves and seals the grooves using O-rings. The electrolytic device for generating hydrogen and oxygen separation according to claim 3, wherein irregularities are formed on a surface of the electrode.